/* os.h
 *
 * Operation System head file
 *   This is a port to CASL Virtual Environment(GUI)
 */

#ifndef _OS_H_
#define _OS_H_
#include "support.h"

/* operations.c */
void display(char *format, ...);
/* io.c */
void input(UWORD alabel,UWORD nlabel);
void output(UWORD alabel,UWORD nlabel);

#endif /* _OS_H_ */
